A discharge device for lithium battery recycling

Abstract

The present invention relates to the technical field of lithium battery discharge, and in particular to a discharge device for lithium battery recovery. It includes a base, a loading frame, a controller, a conveyor, a guide hopper, a mounting frame, a fixed cylinder, a drain pipe and a filter cylinder, etc. The controller is installed on the side of the loading frame, the conveyor is installed in the loading frame, the guide hopper is connected to the side of the loading frame, the mounting frame is connected to the top surface of the base, the fixed cylinder is connected to the mounting frame, the drain pipe is connected to the bottom surface of the fixed cylinder, the filter cylinder is rotatably connected to the mounting frame, and the filter cylinder is located inside the fixed cylinder. The present invention can convey the discharged lithium batteries in the loading frame to the left at one time through the conveyor, and at the same time, the filter cylinder can drive the discharged lithium batteries to rotate, and the water on the lithium battery can be thrown out by the action of centrifugal force, so that the discharged lithium battery can be quickly taken out, and the water adhering to the lithium battery can be removed, which can improve work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery discharge, and in particular to a discharge device for lithium battery recycling. Background Art

[0002] Lithium battery is a rechargeable battery that mainly relies on the movement of lithium ions between the positive and negative electrodes to work. It is widely used in consumer electronics, power tools, energy storage systems, electric vehicles and other fields. Because lithium batteries contain a variety of valuable metals, they can be effectively extracted through recycling and reused in the production of new batteries.

[0003] When people recycle lithium batteries, they first need to discharge the lithium batteries, then disassemble and crush the lithium batteries, and then they can extract the valuable metals. At present, the discharge methods of lithium batteries include salt water immersion method, resistance discharge method, pulse discharge method and chemical reaction discharge method. Since the salt water immersion method is simple to operate and low in cost, people usually use the salt water immersion method to discharge lithium batteries. When using the existing salt water immersion method, first put salt water with a concentration of 5%-10% into a container, and then put the lithium battery cell into the salt water and soak it for 72-96 hours for discharge. After the discharge is completed, the lithium battery cell is taken out and disassembled and crushed. This discharge method has some defects:

[0004] 1. After the lithium battery cells are immersed in salt water for discharge, they need to be fished out of the container one by one manually. In addition, there will be a lot of water on the lithium battery cells, and it takes a lot of time to wait for the water on the cells to fully dry, resulting in low overall work efficiency;

[0005] 2. Since the natural drying effect of the battery cells is poor, there will still be moisture left on the battery cells. When the battery cells are broken, the presence of moisture will make it difficult to separate or purify the positive and negative active materials and other valuable metals after breaking, reducing the efficiency of the recycling process and the purity of the final product. Summary of the invention

[0006] In order to overcome the shortcomings of the existing salt water immersion method, after the lithium battery cells are discharged, the cells need to be manually fished out and the water on the cells needs to be fully dried, resulting in low work efficiency and poor natural drying effect of the cells, which will reduce the efficiency of the recycling process and the purity of the final product. The technical problem to be solved is to provide a discharge device for lithium battery recycling.

[0007] The technical solution of the present invention is: a discharge device for lithium battery recovery, including a base and a loading frame, and also including a controller, a conveyor, a guide hopper, a mounting frame, a fixed cylinder, a drain pipe, a filter cylinder, a rotating assembly and a drying assembly. The controller is installed on the side of the loading frame, the conveyor is installed in the loading frame, the guide hopper is connected to the side of the loading frame, the mounting frame is connected to the top surface of the base, the fixed cylinder is connected to the mounting frame, and the fixed cylinder is inclined, the drain pipe is connected to the bottom surface of the fixed cylinder, the filter cylinder is rotatably connected to the mounting frame, and the filter cylinder is located inside the fixed cylinder, the lithium battery can be placed in the brine in the loading frame for immersion discharge, the controller is used to control the conveyor to transport and discharge the discharged lithium battery, so that the discharged lithium battery can fall into the filter cylinder along the guide hopper, the rotating assembly is used to drive the filter cylinder to rotate, the filter cylinder can drive the discharged lithium battery to rotate to throw out water, and the thrown water can be discharged along the fixed cylinder and the drain pipe, and the drying assembly can dry the lithium battery in the filter cylinder.

[0008] As a preferred technical solution of the present invention, the rotating assembly includes a connecting frame, a driving motor, a connecting gear and an outer gear ring, the connecting frame is connected to the top surface of the mounting frame, the driving motor is connected to the connecting frame, the connecting gear is connected to the output shaft of the driving motor, the outer gear ring is connected to the end surface of the filter cartridge, and the outer gear ring is meshed with the connecting gear, so that the driving motor can drive the filter cartridge to rotate through the meshing of the connecting gear and the outer gear ring.

[0009] As a preferred technical solution of the present invention, the drying component includes a fixed circular tube, a hot air blower, a connecting pipe, an air outlet pipe and a protective net frame. The fixed circular tube is connected to the connecting frame, the hot air blower is connected to the top surface of the base, one end of the connecting pipe is connected to the air outlet of the hot air blower, the air outlet pipe is connected to the fixed circular tube, and the other end of the connecting pipe is connected to the end of the air outlet pipe, so that the hot air blower can blow hot air into the filter cartridge through the connecting pipe and the air outlet pipe to dry the lithium battery. The protective net frame is connected to the filter cartridge, and the air outlet pipe is located on the inner side of the protective net frame to protect the air outlet pipe.

[0010] As a preferred technical solution of the present invention, it also includes a liquid level sensor and an alarm. The liquid level sensor and the alarm are both installed on the side of the loading frame. The liquid level sensor is used to detect the liquid level of the brine in the loading frame. When the liquid level of the brine in the loading frame is too high, the alarm can sound an alarm.

[0011] As a preferred technical solution of the present invention, it also includes a liquid replenishment component, which includes a salinity sensor, a liquid storage frame, a liquid pump II and a liquid pump III. The salinity sensor is installed on the loading frame, the liquid storage frame, the liquid pump II and the liquid pump III are all connected to the top surface of the base, the end of the water outlet pipe of the liquid pump II is located in the loading frame, the water inlet of the liquid pump III is connected to the liquid storage frame, and the end of the water outlet pipe of the liquid pump III is located in the loading frame, so that the liquid pump III can transport the saline in the liquid storage frame to the loading frame for replenishment.

[0012] As a preferred technical solution of the present invention, the liquid replenishment component also includes a water collecting frame and a liquid pump I, both of which are connected to the top surface of the base. The water collecting frame is located below the drain pipe to collect water discharged from the drain pipe. The water inlet of the liquid pump I is connected to the water collecting frame, and the end of the water outlet pipe of the liquid pump I is connected to the liquid storage frame, so that the liquid pump I can transport the water in the water collecting frame to the liquid storage frame for recycling.

[0013] As a preferred technical solution of the present invention, it also includes a mounting tube, a servo motor, a connecting rod, fan blades and a blocking net. The mounting tube is connected to the side of the loading frame, the servo motor is connected to the outside of the mounting tube, the connecting rod is connected to the output shaft of the servo motor, the fan blades are connected to the end of the connecting rod, and the fan blades are located in the mounting tube, and the blocking net is connected to the end of the mounting tube.

[0014] As a preferred technical solution of the present invention, it also includes a support frame, a baffle and a limit rod. The support frame is connected to the top surface of the loading frame, the baffle is rotatably connected to the support frame, the limit rod is fixedly connected to the support frame, and the limit rod contacts the side of the baffle to limit the baffle.

[0015] Beneficial effects: 1. The present invention can convey the discharged lithium batteries in the loading frame to the left at one time through the conveyor. At the same time, the filter cylinder can drive the discharged lithium batteries to rotate, and the moisture on the lithium batteries can be thrown out through the action of centrifugal force. In this way, the discharged lithium batteries can be quickly taken out and the moisture adhering to the lithium batteries can be removed, which can improve work efficiency.

[0016] 2. The present invention cooperates with a hot air blower, a connecting pipe and an air outlet pipe to blow hot air into the filter cartridge to dry the lithium battery while the lithium battery rotates to throw out moisture, thereby preventing moisture from remaining on the lithium battery and thus avoiding the purity of the final product from being affected by moisture.

[0017] 3. The present invention can control the amount of lithium batteries and salt water entering the charging frame through the cooperation of the alarm, the liquid level sensor and the liquid replenishing assembly, and can also automatically control the concentration of the salt water, thereby ensuring the discharge efficiency of the lithium battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention.

[0019] Figure 2 It is a cross-sectional view of the charging frame of the present invention.

[0020] Figure 3 It is a cross-sectional view of the fixing tube of the present invention.

[0021] Figure 4 It is a schematic diagram of the specific structure of the filter cartridge of the present invention.

[0022] Figure 5 The figure is a schematic diagram of the installation of the fixed circular tube, the hot air blower and the connecting tube of the present invention.

[0023] Figure 6 It is a cross-sectional view of the filter cartridge and the fixed circular tube of the present invention.

[0024] Figure 7 It is a schematic diagram of the specific structure of the air outlet duct of the present invention.

[0025] Figure 8 It is a schematic diagram of the installation of the fluid replenishing component of the present invention.

[0026] Fig. 9 For the present invention Figure 7 Schematic diagram from another perspective.

[0027] Fig.10 It is a cross-sectional view of the installation pipe of the present invention.

[0028] Fig.11 It is a schematic diagram of the installation of the support frame, baffle and limit rod of the present invention.

[0029] Marked in the figure: 1-base, 2-loading frame, 201-controller, 3-conveyor, 4-guide hopper, 5-mounting frame, 6-fixed cylinder, 7-drain pipe, 8-filter cylinder, 9-connecting frame, 10-drive motor, 11-connecting gear, 12-outer gear ring, 13-fixed circular pipe, 14-hot air blower, 15-connecting pipe, 16-air outlet pipe, 17-protective net frame, 18-liquid level sensor, 19-alarm, 20-salinity sensor, 21-liquid storage frame, 22-water collection frame, 23-liquid pump I, 24-liquid pump II, 25-liquid pump III, 26-mounting pipe, 27-servo motor, 28-connecting rod, 29-fan blade, 30-blocking net, 31-support frame, 32-baffle, 33-limiting rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment: A discharge device for recycling lithium batteries, such as Figure 1-Figure 7As shown, it includes a base 1 and a charging frame 2, the charging frame 2 is fixedly connected to the right side of the top surface of the base 1, and the left and right sides of the inner wall of the charging frame 2 are inclined surfaces. It also includes a controller 201, a conveyor 3, a guide hopper 4, a mounting frame 5, a fixing cylinder 6, a drain pipe 7, a filter cylinder 8, a rotating assembly and a drying assembly. The controller 201 is installed at the upper left front side of the charging frame 2, and the conveyor 3 is installed in the charging frame 2. There is a gap between the bottom surface of the conveyor 3 and the inner wall of the charging frame 2. When the lithium battery is immersed in the salt water in the charging frame 2 for discharge When the lithium battery is damaged, the active substance or electrolyte inside the lithium battery will precipitate in the salt water. The sponge block can be manually inserted into the right end of the gap between the bottom surface of the conveyor 3 and the inner wall of the charging frame 2, and then the controller 201 controls the conveyor 3 to operate in the reverse direction, which can drive the sponge block to move to the left along the gap between the bottom surface of the conveyor 3 and the inner wall of the charging frame 2, so that the impurities deposited on the bottom of the charging frame 2 can be scraped out to the left, which is convenient for manual cleaning of the inner wall of the charging frame 2. The guide hopper 4 is connected to the left side of the charging frame 2. At the upper part, the mounting frame 5 is connected to the left side of the top surface of the base 1, and the fixed cylinder 6 is connected to the upper part of the mounting frame 5. The fixed cylinder 6 is inclined with the left side lower and the right side higher. The drain pipe 7 is connected to the left side of the bottom surface of the fixed cylinder 6, so that the water in the fixed cylinder 6 can slide to the left into the drain pipe 7 due to gravity and be discharged outward. The filter cylinder 8 is rotatably connected to the upper part of the mounting frame 5, and the filter cylinder 8 is located inside the fixed cylinder 6. The lithium battery can be placed in the brine in the loading frame 2 for immersion and discharge. The controller 201 is used to control the conveyor 3 to convey and discharge the discharged lithium battery, so that the discharged lithium battery can fall into the filter cylinder 8 along the guide hopper 4. The rotating component is used to drive the filter cylinder 8 to rotate. The filter cylinder 8 can drive the discharged lithium battery to rotate and throw out the water. The thrown water can be discharged along the fixed cylinder 6 and the drain pipe 7. At the same time, the drying component can dry the lithium battery in the filter cylinder 8, so that the discharged lithium battery can be quickly taken out and the water on the lithium battery can be removed, which can not only improve the work efficiency, but also avoid the purity of the final product being affected by the water.

[0032] like Figure 3 As shown, the rotating assembly includes a connecting frame 9, a driving motor 10, a connecting gear 11 and an outer gear ring 12. The connecting frame 9 is connected to the left side of the top surface of the mounting frame 5, and the driving motor 10 is connected to the top surface of the connecting frame 9, so that the driving motor 10 can be kept away from the mounting frame 5 and the drain pipe 7 to prevent the driving motor 10 from being damaged by water. The connecting gear 11 is connected to the output shaft of the driving motor 10, and the outer gear ring 12 is connected to the left end of the filter cartridge 8, and the outer gear ring 12 is meshed with the connecting gear 11, so that the driving motor 10 can drive the filter cartridge 8 to rotate through the meshing of the connecting gear 11 and the outer gear ring 12.

[0033] like Figure 3 , Figure 5 , Figure 6 and Figure 7As shown, the drying component includes a fixed circular tube 13, a hot air blower 14, a connecting tube 15, an air outlet pipe 16 and a protective mesh frame 17. The fixed circular tube 13 is connected to the connecting frame 9, and the fixed circular tube 13 is located on the left side of the outer gear ring 12. The hot air blower 14 is connected to the left rear side of the top surface of the base 1. The rear end of the connecting tube 15 is connected to the air outlet of the hot air blower 14. The air outlet pipe 16 is connected to the fixed circular tube 13, and the front end of the connecting tube 15 is connected to the left end of the air outlet pipe 16, so that the hot air blower 14 can blow hot air into the filter cartridge 8 through the connecting tube 15 and the air outlet pipe 16 to dry the lithium battery. The protective mesh frame 17 is connected to the filter cartridge 8, and the air outlet pipe 16 is located on the inner side of the protective mesh frame 17 to protect the air outlet pipe 16 to prevent the lithium battery from colliding with the air outlet pipe 16 during rotation, and to prevent the lithium battery from blocking the air outlet pipe 16.

[0034] First, a proper amount of salt water with a concentration of 5%-10% is manually placed into the loading frame 2, and then the conveyor 3 is controlled to operate in the forward direction through the controller 201. At the same time, a proper amount of lithium batteries can be manually placed on the right side of the top surface of the conveyor 3, and the conveyor 3 can convey the lithium batteries to the left into the loading frame 2, and then the conveyor 3 is controlled to stop operating through the controller 201, so that the lithium batteries can be immersed and discharged in the salt water in the loading frame 2; when the lithium batteries are discharged, the conveyor 3 can continue to operate in the forward direction through the controller 201, and the conveyor 3 can transport the discharged lithium batteries to the left at one time for unloading, so that the discharged lithium batteries can slide into the filter cartridge 8 through the guide hopper 4, and at the same time, the drive motor 10 and the hot air blower 14 can be controlled by the controller 201 to start working, and the drive motor 10 can drive the meshing of the connecting gear 11 and the outer gear ring 12. The movable filter cartridge 8 rotates, and the filter cartridge 8 can drive the lithium battery inside it to rotate. The water on the lithium battery can be thrown out through centrifugal force, so that the water can be thrown onto the inner wall of the fixed cartridge 6. Since the fixed cartridge 6 is inclined, the water in the fixed cartridge 6 will flow to the lower left due to gravity to the drain pipe 7, and then be discharged downward through the drain pipe 7; at the same time, the hot air blower 14 can blow hot air into the filter cartridge 8 through the connecting pipe 15 and the air outlet pipe 16, so as to dry and dehydrate the lithium battery in the filter cartridge 8 to prevent water from remaining on the lithium battery. The protective mesh frame 17 can protect the air outlet pipe 16 to prevent the lithium battery from colliding with the air outlet pipe 16 during rotation, and also to prevent the lithium battery from blocking the air outlet pipe 16. Since the filter cartridge 8 is also inclined, the dried lithium batteries in the filter cartridge 8 will slide to the left due to gravity for discharge, which is convenient for manual unified collection.

[0035] like Figure 8 and Fig. 9As shown, it also includes a liquid level sensor 18 and an alarm 19, both of which are installed on the upper right front side of the charging frame 2, and the liquid level sensor 18 is located on the right side of the alarm 19. The liquid level sensor 18 is used to detect the liquid level of the salt water in the charging frame 2. When the liquid level of the salt water in the charging frame 2 is too high, the alarm 19 can alarm and remind; it also includes a liquid replenishment component, which includes a salinity sensor 20, a liquid storage frame 21, a water collection frame 22, a liquid pump I 23, a liquid pump II 24 and a liquid pump III 25. The salinity sensor 20 is installed on the upper right front side of the charging frame 2, the liquid storage frame 21 and the water collection frame 22 are both connected to the left side of the top surface of the base 1, the liquid storage frame 21 is located on the rear side of the water collection frame 22, and the water collection frame 22 is located below the drain pipe 7 to collect the water discharged from the drain pipe 7, and the liquid pump I 23 is connected to the left side of the top surface of the base 1 (the installation orientation of the liquid pump I 23 is based on the instructions attached) Figure 1 The main view is described in the direction of the main view), the water inlet of the liquid pump I23 is connected to the water collecting frame 22, and the end of the water outlet pipe of the liquid pump I23 is connected to the liquid storage frame 21, so that the liquid pump I23 can transport the water in the water collecting frame 22 to the liquid storage frame 21 for recycling. The liquid pump III25 and the liquid pump II24 are both connected to the rear side of the top surface of the base 1, and the end of the water outlet pipe of the liquid pump II24 is located in the loading frame 2. The water inlet of the liquid pump III25 is connected to the liquid storage frame 21, and the end of the water outlet pipe of the liquid pump III25 is located in the loading frame 2, so that the liquid pump III25 can transport the brine in the liquid storage frame 21 to the loading frame 2 for replenishment.

[0036] Initially, the liquid storage frame 21 is filled with an appropriate amount of water, and the water inlet of the liquid pump II 24 can be externally connected to salt water with a concentration of 5%-10%; when the conveyor 3 conveys the lithium batteries to the left into the loading frame 2, as the number of lithium batteries in the loading frame 2 increases, the liquid level of the salt water in the loading frame 2 will gradually increase, and the liquid level sensor 18 can detect the liquid level of the salt water in the loading frame 2. When the liquid level detected by the liquid level sensor 18 is higher than the first preset value, the liquid level sensor 18 will send a signal. After receiving the signal, the controller 201 will control the alarm 19 to work for 3 seconds, so that the alarm 19 will sound an alarm, thereby reminding the operator to stop putting the lithium batteries in. The battery is placed on the conveyor 3, so that the charging frame 2 can be prevented from being loaded with too many lithium batteries and affecting the discharge efficiency of the lithium batteries. After 3 seconds, the controller 201 will control the alarm 19 to stop working; since the lithium battery will generate a lot of heat during the discharge process, it will cause the water in the charging frame 2 to evaporate, so that the liquid level of the salt water in the charging frame 2 will gradually decrease. When the liquid level detected by the liquid level sensor 18 is lower than the second preset value, the liquid level sensor 18 will send a signal. After receiving the signal, the controller 201 will control the liquid pump II 24 to start working. The liquid pump II 24 can transport the salt water to the charging frame 2 for replenishment, thereby ensuring that the lithium battery The discharge efficiency of the battery is improved. When the liquid level detected by the liquid level sensor 18 is higher than the first preset value, the liquid level sensor 18 will send a signal. After receiving the signal, the controller 201 will control the liquid pump II 24 to stop working. At the same time, the salinity sensor 20 can detect the concentration of the salt water in the charging frame 2. As the water in the charging frame 2 evaporates, the concentration of the salt water in the charging frame 2 will gradually increase. When the salinity sensor 20 detects that the concentration of the salt water in the charging frame 2 is higher than 10%, the salinity sensor 20 will send a signal. After receiving the signal, the controller 201 will control the liquid pump III 25 to start working. The liquid pump III 25 can transport the water in the liquid storage frame 21 to the loading frame 21. The salinity sensor 20 detects that the concentration of the salt water in the loading frame 2 is lower than 10%, and the salinity sensor 20 sends a signal. After receiving the signal, the controller 201 controls the liquid pump III 25 to stop working, so as to prevent the salt water concentration from being too high and affecting the discharge efficiency of the lithium battery. When the water in the fixed cylinder 6 is discharged downward through the drain pipe 7, the water collecting frame 22 can collect the water discharged from the drain pipe 7. When a certain amount of water is contained in the water collecting frame 22, the controller 201 can control the liquid pump I 23 to transport the water in the water collecting frame 22 to the liquid storage frame 21 for recycling.

[0037] like Fig. 9 and Fig.10 As shown, it also includes a mounting tube 26, a servo motor 27, a connecting rod 28, a fan blade 29 and a blocking net 30. The mounting tube 26 is connected to the right part of the rear side of the charging frame 2 (the mounting position of the mounting tube 26 is based on the instructions attached). Figure 1The mounting tube 26 is in the shape of a three-way tube, and the right end of the mounting tube 26 is in a closed state, and the other two ends of the mounting tube 26 are connected to the charging frame 2, the servo motor 27 is connected to the right end of the mounting tube 26, the connecting rod 28 is connected to the output shaft of the servo motor 27, and the connecting rod 28 rotates and penetrates the right end of the mounting tube 26, the fan blade 29 is connected to the left end of the connecting rod 28, and the fan blade 29 is located in the mounting tube 26, and the other two ends of the mounting tube 26 are installed with a blocking net 30; the blocking net 30 can prevent the lithium battery in the charging frame 2 from entering the mounting tube 26, and the mounting tube 26 is connected to the left end of the connecting rod 28. The salt water in the loading frame 2 can enter the mounting tube 26. When the lithium battery is immersed and discharged in the salt water in the loading frame 2, the controller 201 can control the servo motor 27 to drive the connecting rod 28 and the fan blades 29 to rotate. Under the action of the fan blades 29, the salt water can circulate between the loading frame 2 and the mounting tube 26, which helps to cool down the inside of the loading frame 2. Moreover, when the liquid pump III 25 transports the salt water in the liquid storage frame 21 to the loading frame 2, the salt water circulates between the loading frame 2 and the mounting tube 26, which can ensure that the concentration of the salt water in the loading frame 2 is uniform.

[0038] like Fig.11 As shown, it also includes a support frame 31, a baffle 32 and a limiting rod 33. The support frame 31 is connected to the right side of the top surface of the charging frame 2, the baffle 32 is rotatably connected to the upper part of the support frame 31, and the limiting rod 33 is fixedly connected to the upper part of the support frame 31, and the limiting rod 33 is in contact with the right side of the baffle 32 to limit the baffle 32; when the conveyor 3 transports the lithium battery to the left into the charging frame 2, the lithium battery hits the liquid surface of the brine in the charging frame 2, causing the brine to splash, through The baffle 32 can block the splashing salt water and prevent the salt water from splashing to the outside of the loading frame 2. When a large number of lithium batteries are transported into the loading frame 2, the lithium batteries will contact the baffle 32, thereby squeezing the baffle 32 to rotate to the left, which will not affect the normal feeding of the lithium batteries. When the lithium batteries are separated from the baffle 32, the baffle 32 will rotate downward and reset due to gravity. The limit rod 33 can limit the baffle 32 so that the baffle 32 can maintain a certain slope to block the splashing salt water.

[0039] It should be understood that this embodiment is only used to illustrate the present invention and is not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the appended claims of the application.

Claims

1. A discharge device for recycling lithium batteries, comprising a base (1) and a charging frame (2), characterized in that: The invention also comprises a controller (201), a conveyor (3), a guide hopper (4), a mounting frame (5), a fixing cylinder (6), a drain pipe (7), a filter cylinder (8), a rotating assembly and a drying assembly. The controller (201) is mounted on the front side of the loading frame (2). The inner wall of the loading frame (2) has inclined surfaces on both the left and right sides. The conveyor (3) is mounted on the inclined surfaces on both the left and right sides of the inner wall of the loading frame (2) and the inner bottom surface. A gap is left between the bottom surface of the conveyor (3) and the inner wall of the loading frame (2). When the lithium battery is immersed in the salt water in the loading frame (2) for discharge, if the lithium battery is damaged, the active material or electrolyte inside the lithium battery will precipitate in the salt water. The sponge block is inserted into the right end of the gap between the bottom surface of the conveyor (3) and the inner wall of the loading frame (2). Then, the conveyor (3) is controlled by the controller (201) to operate in the reverse direction, so as to drive the sponge block to move to the left along the gap between the bottom surface of the conveyor (3) and the inner wall of the loading frame (2). 2) impurities at the bottom are scraped out to the left, the guide hopper (4) is connected to the side of the loading frame (2), the mounting frame (5) is connected to the top surface of the base (1), the fixed cylinder (6) is connected to the mounting frame (5), and the fixed cylinder (6) is arranged in an inclined manner, the drainage pipe (7) is connected to the bottom surface of the fixed cylinder (6), the filter cylinder (8) is rotatably connected to the mounting frame (5), and the filter cylinder (8) is located inside the fixed cylinder (6), the lithium battery can be placed in the salt water in the loading frame (2) for immersion discharge, the controller (201) is used to control the conveyor (3) to convey and discharge the discharged lithium battery, so that the discharged lithium battery can fall into the filter cylinder (8) along the guide hopper (4), the rotating component is used to drive the filter cylinder (8) to rotate, the filter cylinder (8) can drive the discharged lithium battery to rotate to throw out water, and the thrown water can be discharged along the fixed cylinder (6) and the drainage pipe (7), and at the same time the drying component can dry the lithium battery in the filter cylinder (8); The liquid replenishing assembly also includes a salinity sensor (20), a liquid storage frame (21), a liquid pump II (24) and a liquid pump III (25). The salinity sensor (20) is mounted on the loading frame (2). The liquid storage frame (21), the liquid pump II (24) and the liquid pump III (25) are all connected to the top surface of the base (1). The end of the water outlet pipe of the liquid pump II (24) is located in the loading frame (2). The water inlet of the liquid pump III (25) is connected to the liquid storage frame (21). The end of the water outlet pipe of the liquid pump III (25) is located in the loading frame (2), so that the liquid pump III (25) can transport the salt water in the liquid storage frame (21) to the loading frame (2) for replenishment. The liquid replenishment component also includes a water collecting frame (22) and a liquid pump I (23). The water collecting frame (22) and the liquid pump I (23) are both connected to the top surface of the base (1). The water collecting frame (22) is located below the drain pipe (7) to collect water discharged from the drain pipe (7). The water inlet of the liquid pump I (23) is connected to the water collecting frame (22). The end of the water outlet pipe of the liquid pump I (23) is connected to the liquid storage frame (21), so that the liquid pump I (23) can transport the water in the water collecting frame (22) to the liquid storage frame (21) for recycling. The drying component comprises a fixed circular tube (13), a hot air blower (14), a connecting tube (15), an air outlet pipe (16) and a protective net frame (17). The fixed circular tube (13) is connected to the connecting frame (9), the hot air blower (14) is connected to the top surface of the base (1), one end of the connecting tube (15) is connected to the air outlet of the hot air blower (14), the air outlet pipe (16) is connected to the fixed circular tube (13), and the other end of the connecting tube (15) is connected to the end of the air outlet pipe (16), so that the hot air blower (14) can blow hot air into the filter cartridge (8) through the connecting tube (15) and the air outlet pipe (16) to dry the lithium battery. The protective net frame (17) is connected to the filter cartridge (8), and the air outlet pipe (16) is located on the inner side of the protective net frame (17) to protect the air outlet pipe (16).

2. A discharge device for lithium battery recycling as claimed in claim 1, characterized in that: The rotating assembly comprises a connecting frame (9), a driving motor (10), a connecting gear (11) and an outer gear ring (12); the connecting frame (9) is connected to the top surface of the mounting frame (5); the driving motor (10) is connected to the connecting frame (9); the connecting gear (11) is connected to the output shaft of the driving motor (10); the outer gear ring (12) is connected to the end surface of the filter cartridge (8); and the outer gear ring (12) meshes with the connecting gear (11), so that the driving motor (10) can drive the filter cartridge (8) to rotate through the meshing of the connecting gear (11) and the outer gear ring (12).

3. A discharge device for lithium battery recycling as claimed in claim 1, characterized in that: The invention also comprises a liquid level sensor (18) and an alarm (19), both of which are mounted on the side of the loading frame (2). The liquid level sensor (18) is used to detect the liquid level of the salt water in the loading frame (2). When the liquid level of the salt water in the loading frame (2) is too high, the alarm (19) can give an alarm.

4. A discharge device for lithium battery recycling as claimed in claim 1, characterized in that: The invention also comprises a mounting tube (26), a servo motor (27), a connecting rod (28), a fan blade (29) and a blocking net (30), wherein the mounting tube (26) is connected to the side of the charging frame (2), the servo motor (27) is connected to the outside of the mounting tube (26), the connecting rod (28) is connected to the output shaft of the servo motor (27), the fan blade (29) is connected to the end of the connecting rod (28), and the fan blade (29) is located in the mounting tube (26), and the blocking net (30) is connected to the end of the mounting tube (26).

5. A discharge device for recycling lithium batteries as claimed in claim 1, characterized in that: It also includes a support frame (31), a baffle (32) and a limiting rod (33), wherein the support frame (31) is connected to the top surface of the charging frame (2), the baffle (32) is rotatably connected to the support frame (31), the limiting rod (33) is fixedly connected to the support frame (31), and the limiting rod (33) contacts the side of the baffle (32) to limit the baffle (32).

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